Do earthquakes shake the stock market? Causal inferences from Turkey’s earthquake

Khalid Khan (), Javier Cifuentes-Faura () and Muhammad Shahbaz
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Khalid Khan: Hengxing University
Javier Cifuentes-Faura: University of Murcia

Financial Innovation, 2024, vol. 10, issue 1, 1-19

Abstract: Abstract This study’s main purpose is to use Bayesian structural time-series models to investigate the causal effect of an earthquake on the Borsa Istanbul Stock Index. The results reveal a significant negative impact on stock market value during the post-treatment period. The results indicate rapid divergence from counterfactual predictions, and the actual stock index is lower than would have been expected in the absence of an earthquake. The curve of the actual stock value and the counterfactual prediction after the earthquake suggest a reconvening pattern in the stock market when the stock market resumes its activities. The cumulative impact effect shows a negative effect in relative terms, as evidenced by the decrease in the BIST-100 index of − 30%. These results have significant implications for investors and policymakers, emphasizing the need to prepare for natural disasters to minimize their adverse effects on stock market valuations.

Keywords: Stock market; Earthquake; Causal inference; Bayesian structural time-series; Counterfactual predicting (search for similar items in EconPapers)
JEL-codes: E44 E66 G18 (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1186/s40854-024-00664-w

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